September weather forecastHorstdorf, Germany
September
Weather in September
September, the first month of the autumn in Horstdorf, is still a comfortable month, with temperature in the range of an average high of 19.5°C (67.1°F) and an average low of 11.1°C (52°F).Temperature
Stepping into September, Horstdorf observes a temperature decline, with the average high falling from August's warm 24.5°C (76.1°F) to an enjoyable 19.5°C (67.1°F). Throughout the month of September, Horstdorf reports a steady low-temperature average of 11.1°C (52°F).Humidity
The average relative humidity in September is 73%.Rainfall
In Horstdorf, in September, it is raining for 10.3 days, with typically 22mm (0.87") of accumulated precipitation. Throughout the year, there are 138.7 rainfall days, and 270mm (10.63") of precipitation is accumulated.Snowfall
In Horstdorf, snow does not fall in May through September.Daylight
In September, the average length of the day in Horstdorf is 12h and 39min.On the first day of September, sunrise is at 06:23 and sunset at 19:56. On the last day of the month, sunrise is at 07:10 and sunset at 18:49 CEST.
Sunshine
In September, the average sunshine is 8.7h.UV index
The average daily maximum UV index in September in Horstdorf is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Horstdorf, Germany
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (2.3°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (-1.9°C).
Average pressure in September
Horstdorf, Germany
- Average pressure in September: 1017.3mbar
The months with the highest atmospheric pressure are September and October (1017.3mbar).
The month with the lowest atmospheric pressure is November (1014mbar).
Average wind speed in September
Horstdorf, Germany
- Average wind speed in September: 11.2km/h
The windiest month (with the highest average wind speed) is December (16.2km/h).
The calmest month (with the lowest average wind speed) is August (10.6km/h).
Average humidity in September
Horstdorf, Germany
- Average humidity in September: 73%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Horstdorf, Germany
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is July (36mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in September
Horstdorf, Germany
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in September
Horstdorf, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (38mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Horstdorf, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Horstdorf, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The months with the least sunshine are January and December (Average sunshine: 3h and 42min).
Average sunshine days in September
Horstdorf, Germany
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is April (16.9 days).
The month with the least sunshine days is December (12.5 days).
Average UV index in September
Horstdorf, Germany
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Horstdorf, Germany
- Average cloud cover in September: 38
The months with the most cloud cover are January and December (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Horstdorf, Germany
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The month with the lowest visibility is January (8km).
